Efficacy of Cadonilimab in Non-squamous Non-small Cell Lung Cancer Patients Resistant to EGFR-TKI

This prospective study aims to enroll 20 elderly patients (age≥65 years) with advanced non-squamous NSCLC with T790M negative after EGFR-TKI resistance. Eligible patients will be given 4 to 6 cycles of cadonilimab plus pemetrexed and anlotinib, followed by maintenance treatment with cadonilimab plus anlotinib until disease progression, intolerable toxicity, withdrawal of consent, death, or other protocol-specified causes, whichever occurs first. Imaging assessments are scheduled to conduct every 6 weeks for the first year and then every 12 weeks thereafter. The follow-up of participants who discontinued treatment for reasons unrelated to disease progression will be continued, until the initiation of other anti-tumor therapy, disease progression, death, or the end of the study, whichever occurrs first.